Revert "feat(server): deprecated the subscription module."

This reverts commit 3b79ac66ae.

packages/server/src/services/Organization/OrganizationService.ts

@@ -144,6 +144,7 @@ export default class OrganizationService {
   public async currentOrganization(tenantId: number): Promise<ITenant> {
     const tenant = await Tenant.query()
       .findById(tenantId)
+      .withGraphFetched('subscriptions')
       .withGraphFetched('metadata');
 
     this.throwIfTenantNotExists(tenant);